Thanks Dave for your help

Ap5112 wrote on 11/05/13 at 07:00:47:

The 2006 control won't directly work with the '98 wiring w/out some work.
It will bolt up and plug in but there's a change in the wiring.
I did work out the change but I haven't done anything with it yet.

I looked at the wiring diagrams and it appears the clutch safety switch was added to the left wiring harness in 1995.  The right wiring harness had 3 wires added in 2004 for the hazard switch, and that same 2004 year the passing light was added to the left control.....but it may not have affected the wiring harness connector. (The wiring harness for the control has the passing switch connection made internal to the left harness about 5 inches from the switch).

I can't determine if/when the connectors were changed....but most likely the left one was changed in 2004 with the addition of the emergency flasher switch.  The left one probaby changed in 95 when the clutch safety was added....and I can't confirm if it was changed again in 2004 - but the wiring diagram seems to indicate that there were no additional wires at the connector.

I checked the photos on eBay....that didn't help much.